Face mask



FIG. 1 is a perspective view of a face mask showing our new design;

FIG. 2 is a side elevation thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a rear elevation thereof. 

The ornamental design for a face mask, as shown and described. 